Filter
Top Products
21
True Altitude
When the air is colder than standard your altimeter
can mislead you into thinking you are higher than
you actually are. Determine true altitude by the
following steps:
1. Determine pressure altitude by setting 29.92
momentarily on the altimeter.
2. Set pressure altitude next to outside air tem-
perature in the altitude correction window.
3. Subtract station altitude from indicated/cali-
brated altitude to determine calibrated alti-
tude AGL.
4. Find calibrated altitude AGL on the middle
scale and read the correction to station alti-
tude on the outer scale.
5. Add the correction to station altitude to get
true altitude MSL.
Figure 15